What psi should I be using??

I am a big bloke (130kg) and have just brought some Schwalbe City Jets to put on my MTB for commuting to work which I am hoping will help me loose some much needed weight.
The only issue I am struggling to work out is what pressure should I be running my tyres at? It's the first time I will be using slicks so don't want to get it wrong and end up killing myself just yet
The only issue I am struggling to work out is what pressure should I be running my tyres at? It's the first time I will be using slicks so don't want to get it wrong and end up killing myself just yet

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See what it says is the max and add air.
Parktools :?:SheldonBrown
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Pointing back at the top.
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I will change them tomorrow
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